Top CRO Agency in Australia: Who’s Leading the Way in Conversion Optimisation?

When it comes to digital marketing, getting traffic is just half the battle. The real challenge? Turning that traffic into sales, signups, or enquiries. That’s where Conversion Rate Optimisation (CRO) comes in.

In Australia, several CRO agencies are helping brands remove friction, improve user journeys, and boost ROI through smart experimentation. Below, we’ve listed some of the top CRO agencies in Australia — starting with the one making the biggest impact in 2025.

1. DigitXL – Melbourne, VIC

Website: www.digitxl.com.au

At the top of the list is DigitXL, a Melbourne-based Cro agency and analytics consultancy known for its data-led approach to growth. From eCommerce brands to enterprise clients, DigitXL has become a go-to name for companies looking to improve conversions without guesswork.

Why DigitXL stands out:

• Proven success with brands like Rip Curl, Kathmandu & Crown Resorts

  Expertise in Search Engine Optimisation, Shopify CRO, GA4, Segment CDP, Adobe Suite, and UX audits

  Focus on measurable experiments, not just design changes

  Ability to handle everything from tracking setup to A/B testing and dashboarding

"CRO isn’t about changing button colours — it’s about removing friction at every stage of the customer journey."

• Tapan Patel, Director of DigitXL

Whether you’re an online retailer or a B2B business, DigitXL offers the technical depth and strategic thinking to help you scale smarter.

2. Conversion Kings – Brisbane, QLD

Website: www.conversionkings.com.au

Specialising in experimentation and conversion research, Conversion Kings helps large Australian brands understand user behaviour, run A/B tests, and make data-informed decisions. They’ve worked with clients like Lorna Jane and Optus, offering a robust CRO testing framework.

3. New Republique – Sydney, NSW

Website: www.newrepublique.com

New Republique blends UX design with CRO strategy to deliver better customer experiences. With a client list including Telstra and Woolworths, they’re known for their design-led approach and focus on user research and behavioural analytics.

4. Swanky – Remote / Global with AU Presence

Website: www.swankyagency.com

Swanky is a Shopify Plus CRO agency originally from the UK, now serving global clients including many in Australia. Their focus is eCommerce conversion optimisation, with services like funnel audits, split testing, and UX design tailored to fast-growing online retailers.

5. Rocket Agency – Sydney, NSW

Website: www.rocketagency.com.au

Although best known for performance marketing, Rocket Agency also offers CRO as part of its integrated service model. They combine media buying, UX tweaks, and analytics to improve conversion rates for lead-gen and eCommerce sites alike.

What Makes a CRO Agency Great?

When evaluating any CRO agency in Australia, here’s what to look for:

• Data-led approach (not just design opinions)

• • Ability to run real experiments (A/B or multivariate)
• • Experience with your platform (e.g. Shopify, WordPress, Magento)
• • UX and analytics skills under one roof
• • Clear process and measurable KPIs

And remember the right CRO partner won’t just help you convert more today, but will also help you build a system for continuous improvement over time.

Final Thoughts

If you're investing in traffic through SEO, paid ads, or email marketing but not seeing enough conversions a CRO strategy could unlock the growth you’re looking for.

Start with the experts. And if you're looking for a top CRO agency in Australia, DigitXL should be your first stop.